Hackers Can Use Ultrasounds to Take Control of Alexa, Siri, Cortana, Others

Catalin Cimpanu reports:

Six scientists from Zhejiang University in China have discovered that they could use ultrasound frequencies — inaudible to human ears — to send commands to speech recognition software and take over devices such as smartphones, smart home assistants, or even cars.

Researchers named their experiment DolphinAttack because the attack scenario was inspired by how dolphins sometimes communicate with each other using inaudible sounds.

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